I’ve been constructing more small parts for the Spitfire build. Everything starts off laser cut from flat sheets of balsa, so items thicker than that are made up by laminating 2 or more parts together. For added strength some of these laminations are cross grained. Once the glue has hardened, the part can be shaped to achieve the desired profile. For this I’ve been using a combination of modelling files, scalpel and fine glass paper.
Here are some of the items I made earlier:
From left to right: Undercarriage assembly (with the legs and wheels already shaped), Oil cooler, Air intake and Radiator. Above those are the exhaust pipes. All these have yet to be sanded to the correct shape.
The big radiator was a bit of a pig, as you can see it is curved and the flat rectangular panel has to be glued to the curved sides to create the correct shape. Of course the balsa has a natural desire to stay flat, so it has to be clamped onto the sides by hand until the glue sets. This proved impossible as for once the PVA refused to hold and the panel kept pinging off. After a couple of goes I grew impatient and resorted to using cyano adhesive. Job done!
Not shown here is the propeller assembly which has also received some attention.
I’m nearly ready for the next major milestone: covering the airframe. Can’t wait!